Bug#1022115: 0ad: fails to build from the source

[Simon McVittie]

On Thu, 20 Oct 2022 at 11:32:52 +0100, Andrej Shadura wrote:
>  >  g++: fatal error: Killed signal terminated program cc1plus
...
>     make[5]: *** Deleting file 'Unified_cpp_js_src_jit4.o'

SIGKILL while compiling C++ looks like the OOM-killer to me: 0ad contains
a bundled copy of mozjs, which is a large and compile-time-memory-hungry
C++ project. How large a machine did you use to build it?

(In particular, mozjs uses "unified" compilation where several C++ source
files are bundled into one big translation unit, which is a time/space
tradeoff that makes it use more memory to compile sooner. The down side
is that machines with limited RAM can't compile it at all.)

Having a bundled copy of mozjs is obviously not ideal, particularly with
mozjs being such a pain to compile, but I seem to remember there's some
technical reason why 0ad needs to have it.

    smcv